Question 221Electricity & Electronics - 1st Asst/Chief

The correct answer is A) high series resistance. To limit the current flow through a DC voltmeter to as low a value as possible, the moving coil circuit is provided with a high series resistance. This high series resistance ensures that only a small fraction of the total circuit current flows through the voltmeter, minimizing the impact on the measured voltage. The other options are incorrect because: B) high parallel resistance would not limit the current flow through the voltmeter; C) an external shunt is used to measure current, not to limit voltage measurement; and D) a series inductor would not effectively limit the current in a DC circuit.